{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "potential therapeutic event", "arguments": ["Treatment.Dosage", "Treatment.Duration", "Treatment.Disorder", "Subject.Disorder", "Treatment.Time_elapsed", "Treatment.Route", "Combination.Drug", "Treatment.Freq", "Treatment", "Treatment.Drug", "Subject.Race", "Subject.Age", "Subject.Population", "Effect"]}], "input": "To report a case of a probable interaction between warfarin and extended-release niacin that may have led to synergistic coagulopathy and to inform health care providers of a need for more frequent monitoring of international normalized ratio (INR) in patients taking these drugs concomitantly."}
{"potential therapeutic event": []}